The Fileshare Server was unable to create the recovery log file when it was starting up and so will not start. The problem should be rectified before trying to start the Fileshare Server again.
Ensure that the log filename contains a valid directory and filename. The Fileshare Server requires read-write access to the log file and permissions to create the file if necessary. Ensure that, if the file of this name already exists, it is not being used by another process.